Articles tagged with Quantum Computing
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A new experiment demonstrates the stability of quantum interactions between coupled atoms under electron bombardment. The findings suggest that special quantum states may be realized in quantum computers more easily than previously thought.
Researchers have successfully demonstrated direct observation and measurement of quantum entanglement at a macroscopic scale using vibrating membranes. This breakthrough enables the extension of measurements to larger systems, with potential implications for quantum computing and fundamental physics research.
Assistant Professor Robert Fickler and Doctoral Researcher Markus Hiekkamäki demonstrated near-perfect two-photon interference control using spatial photon shape. The method holds promise for building new linear optical networks and developing quantum-enhanced sensing techniques.
Prof. Dr. Piet O. Schmidt receives EU funding to explore fundamental questions of modern physics, aiming to improve limits for new forces and changes in natural constants. His team plans to develop novel measurement methods using highly charged ions.
A team of scientists has demonstrated atom interferometry on a sounding rocket, enabling precise measurements of gravity and potentially detecting gravitational waves. The success of this experiment marks a significant milestone in the field of quantum technologies.
A multidisciplinary team of scientists has developed a new way to detect phase transitions in raw data by analyzing its intrinsic dimension, a statistical property that reveals collective properties of partition functions. This method is agnostic and does not require prior knowledge of the system's parameters.
Researchers at Purdue University have addressed an issue that was barring the development of quantum networks. By deploying a programmable switch, they can adjust how much data goes to each user by selecting and redirecting wavelengths of light carrying different data channels. This allows for the increase in users without adding to ph...
Scientists at Cornell University have successfully created a material structure that simultaneously exhibits superconductivity and the quantum Hall effect. This breakthrough could enable the development of more efficient electronics, such as data centers cooled to extremely low temperatures.
An international team of experts has demonstrated that only quantum gravity can create a specific ingredient needed for quantum computation. The proposed experiment involves cooling billions of atoms to extremely low temperatures and applying a magnetic field, which would reveal the underlying gravity if it's quantum.
Physicists have produced kagome graphene, a carbon-nitrogen compound with unusual electrical properties, including semiconducting behavior that can be switched on and off. The material's unique structure and strong electron interactions could lead to the development of sustainable electronic components.
Researchers at the University of Vienna demonstrated a new approach to reduce noise in quantum communication schemes by sending particles along multiple paths simultaneously. This method, which utilizes quantum superposition, offers improved noise reduction and has been experimentally confirmed.
Danna Freedman, a Northwestern University professor, presents a novel approach to quantum chemistry, enabling the creation of next-generation quantum technology. Her research challenges the assumption that molecules are too complex to study effectively, paving the way for new understandings.
Researchers have developed a new method to detect Majorana zero modes in one-dimensional quantum nanowires, overcoming previous detection difficulties. This breakthrough improves device reproducibility and opens the door for scalable quantum computing applications.
A team of physicists from the University of Trento has developed a method to compute changes in protein shape and trajectory using quantum computers. This technology has implications for understanding neurodegenerative processes and developing new treatments.
Researchers at the University of Bonn used ultracold atoms to study magnetic orders in coupled thin films, finding that correlations competed with original order. The study provides new insights into novel quantum phenomena and their potential applications in quantum computing and superconductors.
Researchers from the University of Pittsburgh have created a serpentine path for electrons, changing their properties and giving rise to new behavior. The work uses a nanoscale sketching technique to engineer spin-orbit interactions, which could be useful in future quantum technologies.
Scientists have successfully detected a topological Kosterlitz-Thouless (KT) phase in the rare-earth magnet TmMgGaO4 using highly sensitive nuclear magnetic resonance and magnetic susceptibility measurements. The experiment confirms long-held theoretical predictions, marking a significant breakthrough in understanding the behavior of q...
Scientists have found a way to characterize the degree of quantumness in physical systems, which is essential for understanding quantum computing and sensing advantages. By analyzing extrema states, researchers identified a mathematical representation called Majorana constellation, which covers more of the sphere as quantumness increases.
A USask physicist is leading a world-first collaboration to develop a compact, precise magnetometer using diamond-based technology. The new device has potential applications in geological prospecting, medicine, and quantum computing.
Researchers from University of Bristol's QET Labs developed a tiny device that measures quantum features of light at record high speeds. This achievement promises novel routes to outperform current state-of-the-art in computing, communication, and measurement.
Scientists have successfully produced and studied a quantum spin liquid (QSL) in a new material called EDT-BCO. The QSL emerges due to the unique structure of the material, which includes triangularly organized dimers and sublattice of carboxylate anions.
Scientists at University of Rochester and Cornell University have developed a nanoscale node made of magnetic and semiconducting materials that can interact with other nodes using laser light. The device uses entanglement, a phenomenon in quantum mechanics, to connect quantum nodes across a remote network.
A joint research group has developed a way to simulate the quantum physical properties of complex solid state systems using real systems of atoms. The team's approach uses mathematical and numerical methods to investigate which quantum systems are suitable for simulations, paving the way for progress in robust quantum computing.
A joint research team has solved the puzzle of non-Fermi liquid behaviour in interacting electrons systems through quantum many-body computation and analytical calculations. The findings provide a protocol for establishing new paradigms in quantum metals, with potential applications in solving the energy crisis.
A University of Reading mathematician is collaborating with Microsoft to study ancient mathematical problems, including Diophantine equations, to aid in the development of encryption software. The project aims to create more secure data protection against quantum computers that can solve complex mathematical problems quickly.
A multidisciplinary research team led by Columbia University is developing a quantum simulator to tackle real-world challenges. The project, funded by a $1 million NSF Convergence Accelerator award, aims to create a device that can solve problems difficult for classical computers.
Topological insulators exhibit unusual quantum phenomena due to their electrically conductive surface and insulating interior. A recent study revealed the relationship between the magnetic properties and electronic band structure, finding that the Dirac cone gap closes with increasing temperature, contradicting previous theories.
A team of scientists has developed a novel type of quantum emitter formed from spatially separated InGaN monolayer islands. The isolated islands exhibit high photostability and can be spectrally filtered to act as bright, fast single photon emitters at a wavelength of ~400 nm.
Researchers from Lancaster University found that exotic particles stick to all surfaces in the superfluid, enabling objects to move at high speeds without destroying the fragile state. This discovery may guide applications in quantum technology and quantum computing.
Researchers validate the Kibble-Zurek mechanism in quantum magnetic systems and demonstrate its applicability to open quantum systems using commercially available D-Wave annealers. The study provides strong experimental evidence for the generalized theory, showcasing the potential of quantum annealers in exploring nonequilibrium physics.
Archana Kamal, a UMass Lowell physics professor and expert on quantum information technologies, will co-present a free TEDx talk on the next quantum revolution. The event features prominent women experts in various fields, including science, technology, education, and business.
Researchers demonstrated new methods for controlling spin waves in nanostructured materials, enabling energy-efficient information transfer and quantum computing applications. They achieved this by exciting magnons with short laser pulses, allowing precise control over spin wave parameters.
Researchers developed a framework to analyze entropy in quantum systems, allowing for control over measurements and improving the quality of quantum computer readouts. The study demonstrates the importance of understanding the link between thermodynamics and quantum measurements.
Researchers from Kazan Federal University developed a quantum algorithm to solve the Dyck problem, which is crucial for parsers and compilers. The new algorithm can solve the problem in just 40 seconds on a quantum computer.
Researchers at City College of New York create topological magnetic superlattice material that can conduct electrical current without dissipation and lost energy. The discovery has the potential to advance energy-efficient technologies and enable topological superconductivity.
A new mathematical procedure minimizes the sign problem in quantum Monte Carlo method, reducing computational time for solid-state systems. This approach enables faster development of materials with special spin properties.
Buckled graphene mimics colossal magnetic fields, altering electronic properties for novel quantum materials and superconductors. Researchers discover dramatic changes in material's behavior at extremely low temperatures.
Researchers have developed a quantum algorithm that can diagnose noise in large quantum systems, enabling the creation of more reliable and scalable quantum computers. The algorithm was tested on a 14-qubit machine and discovered correlations not previously detected.
Scientists have found that quantum particles can carry unlimited information about interacted objects, enabling precise measurements. Researchers developed a new technique using quasi-probabilities to improve metrology, leading to potential breakthroughs in super-precise microscopes and quantum computers.
Researchers at the University of Birmingham and international partners have developed a technique to miniaturize sensing devices using cold atoms and optical metasurfaces. The resulting devices are significantly smaller, with potential applications in various industries.
Scientists at Argonne National Laboratory and University of Chicago developed a quantum embedding theory to simulate complex materials, exceeding current methods' accuracy. The method was tested on classical and quantum computers, showing high accuracy and effectiveness.
Researchers at UVA have developed an algorithm to classify genomic data using quantum computers, potentially revolutionizing the field of genetic research. The new technology could analyze vast amounts of genetic data exponentially faster than conventional computers.
Scientists at NIST have developed a novel instrument that can make three kinds of atom-scale measurements simultaneously, helping researchers uncover new knowledge about special materials crucial for developing the next generation of quantum computers and communications. The instrument combines an atomic force microscope, scanning tunn...
A study has described how teleportation can be used to create a high-tech jamming session between a human musician and a quantum computer. The result is a unique performance piece combining live human and computer-generated sounds.
Researchers have created a metal-like quantum gas by exciting electrons in ultracold rubidium atoms, allowing for ultrafast simulation of many-body electron dynamics. The exotic phase has the potential to enhance our understanding of physical properties like superconductivity and magnetism.
Researchers at the University of Basel have developed a new communication protocol that offers ultimate privacy protection by adding artificial noise to information about the crypto key. This allows for security guarantees even in cases where devices are unknown entities, overcoming a significant obstacle to experimental implementation.
Researchers developed a new descriptor named orbital electrostatic energy (OEE) to describe electrostatic properties of ions and arene π systems. OEE strongly correlates with binding energies, especially for multiply-shaped ion-π complexes.
Researchers have discovered second harmonic light emissions in superconductors, breaking conventional laws of physics. This finding could lead to breakthroughs in high-speed quantum computing and communication technologies.
A team of researchers from the University of Seville and international partners successfully filmed quantic measurement for the first time. The experiment confirmed a subtle prediction in quantum physics, showing that the quantum state changes gradually during measurement rather than instantaneously.
Researchers at the Max Planck Institute for Nuclear Physics have successfully measured infinitesimal changes in mass of individual atoms for the first time, opening a new world for precision physics. The team discovered a previously unobserved quantum state in rhenium, which could be interesting for future atomic clocks.
Researchers are exploring quantum computing's potential in accelerating drug discovery for COVID-19 treatment. By generating complex compounds quickly, they aim to find a cure faster and more efficiently than traditional methods.
Researchers at Stockholm University have developed a method to speed up quantum computing using giant Rydberg ions, which can exchange quantum information in under a microsecond. This breakthrough could lead to the creation of scalable quantum computers for complex calculations.
Researchers discovered that bosons can transform into fermions when constrained to a one-dimensional gas, enabling new insights for quantum devices and computers. This breakthrough could provide a method for dynamically switching between bosonic and fermionic systems to meet military needs.
A team of Lehigh University optimization experts, led by Tamás Terlaky, will work on optimizing algorithms for quantum computing with a $2.1M DARPA grant. They aim to demonstrate that quantum computers can surpass classical computers on certain problems.
Researchers have developed a chip-based device that can shape and steer blue light with no moving parts, paving the way for miniaturized optical systems in augmented reality and other applications. The device's silicon nitride platform enables reconfigurable lenses to create arbitrary 3D light patterns.
Researchers have developed a novel approach for quantum error correction that can mitigate certain types of random fluctuations, enabling the creation of more efficient quantum computers and sensors. By targeting specific noise sources, this method could significantly improve the performance of quantum systems.
Researchers created a 'film' of a single atom's measurement process, showing that the state changes gradually over time. This study provides new insights into the inner workings of nature and sheds light on the predictions of modern quantum physics.
Researchers discovered that applying vibrational motion in a periodic manner can prevent dissipations of desired electron states, making topological materials promising for technological applications. This approach, called dynamic stabilization, enhances protected topological states, enabling longer-lived electronic excitations.
The study reveals a new electronic state of matter where electrons form bunches of two, three, four and five electrons behaving like new types of particles. Researchers recognized a sequence within Pascal's Triangle that helped them understand the discovery, which features properties related to quantum entanglement.
Scientists have discovered a new method to realize non-Abelian braiding in a non-Majorana system by constructing Jackiw-Rebbi zero-modes in a quantum spin Hall insulator. This breakthrough has the potential to enable topological quantum computation without superconductivity, offering advantages over Majorana-based systems.